1.更换电池
1. Replacement of batteries
要安装或更换电池，按图 2 所示打开电池盒并放入电池。
To install or replace the battery, open the battery box and put it in as shown in Figure 2.
2.清洁透镜
2. Clean lens
使用干净的压缩空气吹走脱落的粒子。用湿棉签小心地擦拭表面。棉签可用清水湿润。
Use clean compressed air to blow away fallen particles. Wipe the surface carefully with a wet cotton peidiandl.37ix.com.cntuoguntx.37ix.com.cntuliao.37ix.com.cn xingcai.37ix.com.cngaiban.37ix.com.cnrunhuaji.37ix.com.cnswab. Cotton swabs can be wetted with clear water.
3.清洁机壳
3. Clean the chassis
用肥皂和清水沾湿海绵或软布。为避免损坏测温仪，切勿将仪器浸入水中。
Wet sponge or soft cloth with soap and water. In order to avoid damaging the thermometer, do not immerse the instrument in water.